<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>棋盘</title>
    <style>
        .contains {
            width: 150px;
            height: 150px;

            border: 1px solid black;
            margin: auto;

            display: flex;
        }
        .black {
            width: 50px;
            height: 50px;
            background-color: black;
        }
        .white {
            width: 50px;
            height: 50px;

            background-color: white;
        }
    </style>
</head>
<body>
    <div class="contains">
        <div>
            <div class="black"></div>
            <div class="white"></div>
            <div class="black"></div>
        </div>
        <div>
            <div class="white"></div>
            <div class="black"></div>
            <div class="white"></div>
        </div>
        <div>
            <div class="black"></div>
            <div class="white"></div>
            <div class="black"></div>
        </div>

    </div>
</body>
</html>


<!-- <!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>美女图片列表</title>
    <style>
        .row > img {
            width: 40%;
        }
    </style>
</head>
<body>
    <div class="row">
        <img src="./image/mn1.jpg" alt="">
        <img src="./image/mn2.jpg" alt="">
        <img src="./image/mn3.jpg" alt="">
        <img src="./image/mn4.jpg" alt="">
        <img src="./image/mn5.jpg" alt="">
        <img src="./image/女.jpg" alt="">
    </div>
</body>
</html> -->